Abstract

The present invention provides a surge protection device. The surge protection device comprises a base and a protection module; the protection module comprises inverted snaps, a slide groove, a PCB, a light guide column, and a Type-C interface; the base comprises a lower housing, a cover, a grounding piece, wiring terminals, wire plugging ports, clips, inverted snap grooves, bus pins, and grounding clips; each wiring terminal comprises a pressing block, a U-shaped elastic piece, and a copper busbar; the base and the protection module are connected by means of the clips, the inverted snap grooves, and the inverted snaps; and the slide groove is of an error-proof design. According to the present invention, wire plugging and unplugging can be achieved without using tools, and ordered arrangement of wires is achieved; in addition, a 30 kA instantaneous current or a larger impact current can be resisted.

IPC Classes  ?

• H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
• H01R 13/24 - Contacts for co-operating by abutting resilientContacts for co-operating by abutting resiliently mounted

Abstract

A surge protection module (1) and a surge protection device. The surge protection module (1) comprises: a bearing frame (12), a mounting plate (121) of which is provided with an electrode via hole (1211); a pressure-sensitive resistor (13) having a first electrode (131) and a second electrode (132) on the first side of the mounting plate (121); an electrode connector (14) mounted on the second side of the mounting plate (121), one end of the electrode connector (14) being welded to the second electrode (132) by means of the electrode via hole (1211); and a tripping mechanism comprising a rotating body (15) and a potential storage spring (16), wherein the rotating body (15) is provided with an arc-isolating plate (154), when the electrode connector (14) and the second electrode (132) are in a welding state, the rotating body (15) is limited in the first position, and the arc-isolating plate (154) is located on the side of the rotating body (15) facing the electrode via hole (1211) and corresponds to the electrode via hole (1211); and when a solder between the electrode connector (14) and the second electrode (132) melts, the potential storage spring (16) drives the rotating body (15) to rotate, and the arc-isolating plate (154) rotates to the electrode via hole (1211) and between the electrode connector (14) and the second electrode (132). The surge protection module (1) and the surge protection device can effectively avoid the problem of solder adhesion and possibly arcing during tripping.

IPC Classes  ?

• H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage

Abstract

Disclosed in the present invention are a linkage mechanism, a base, and a surge protection device. The linkage mechanism comprises a linkage swing rod and transmission components, wherein the linkage swing rod is arranged to be rotatably connected, and is provided with a trigger portion capable of triggering a switch when rotating and at least two stress portions arranged spaced apart from each other on one side of an axis of rotation of the linkage swing rod; one transmission component is arranged corresponding to each of the stress portions; and the transmission components are arranged in such a way that any of the transmission components applies a pushing force to the stress portion to rotate the linkage swing rod, and thus the trigger portion triggers the switch. According to the surge protecting device using the linkage mechanism provided in the present invention, a module failure signal can be sent out when any surge protection module fails under the condition where only one microswitch is arranged, which not only simplifies the structure of the surge protecting device and reduces the volume, but also reduces the cost.

IPC Classes  ?

• H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
• H01H 3/46 - Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
• H01H 71/02 - HousingsCasingsBasesMountings
• H01H 83/10 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess voltage, e.g. for lightning protection

Goods & Services

Electrical transducers; Electronic apparatus for the remote control of industrial operations; Current converters; Temperature transmitters; Voltage monitor modules; Voltage surge suppressors; Level converters; Electronic circuits; Voltage regulators; Direct current converters; Data processing apparatus; Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; Thermostats; Electrical power distribution blocks; Transmitters of electronic signals; Electric power converters; Electric current control devices; Power controllers; Electric relays; Voltage surge protectors; Electronic controllers for servo motors; Recorded computer-aided design (CAD) software for designing integrated circuits; Recorded computer-aided manufacturing (CAM) software for integrated circuits; Programmable logic controllers; Signal conditioning and communication devices for industrial process control; Electric couplings; Apparatus for measuring, testing, analyzing and monitoring electrical voltage and temperature

Abstract

A bidirectional transmission circuit for a universal signal, comprising an intrinsically safe energy limiting module, a first signal coupling module, an isolation transformer module, a second signal coupling module and a control module; the first signal coupling module adjusts a first direct current signal of a universal signal to a first alternating current signal, the isolation transformer module transmits the first alternating current signal to the second signal coupling module in an isolation manner, and the second signal coupling module adjusts the first alternating current signal to a second direct current signal to a universal signal receiving terminal; the second signal coupling module further adjusts a third direct current signal of a control signal to a second alternating current signal, and the first signal coupling module further adjusts the second alternating current signal to a fourth direct current signal to a control signal receiving terminal.

IPC Classes  ?

• G08C 19/02 - Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

Disclosed in the present application are an HART circuit and a state determination method for a field interface thereof. The HART circuit comprises: a control interface, an adjustable power supply module, a first HART module, an isolation module and a field interface. The first HART module is connected to the control interface, and the first HART module is configured to generate a first control signal when a first inquiry signal is inputted at the control interface; the adjustable power supply module is respectively connected to the control interface and the first HART module, and the adjustable power supply module is configured to output a first power supply signal to the control interface and modulate the first power supply signal into a first HART signal in response to the first control signal; a first end of the isolation module is connected to the control interface, and the isolation module is configured to isolate a signal of the first end of the isolation module and couple same to a second end of the isolation module; and the field interface is connected to the second end of the isolation module.

IPC Classes  ?

• H02M 7/44 - Conversion of DC power input into AC power output without possibility of reversal by static converters
• H02M 5/10 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers
• H02M 3/26 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes without control electrode or semiconductor devices without control electrode to produce the intermediate AC
• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
• H04L 67/125 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network

Abstract

A surge protection module (1) and a surge protection device. The surge protection module (1) comprises: a bearing frame (12), a mounting plate (121) of which is provided with an electrode via hole (1211); a pressure-sensitive resistor (13) having a first electrode (131) and a second electrode (132) on the first side of the mounting plate (121); an electrode connector (14) mounted on the second side of the mounting plate (121), one end of the electrode connector (14) being welded to the second electrode (132) by means of the electrode via hole (1211); and a tripping mechanism comprising a rotating body (15) and a potential storage spring (16), wherein the rotating body (15) is provided with an arc-isolating plate (154), when the electrode connector (14) and the second electrode (132) are in a welding state, the rotating body (15) is limited in the first position, and the arc-isolating plate (154) is located on the side of the rotating body (15) facing the electrode via hole (1211) and corresponds to the electrode via hole (1211); and when a solder between the electrode connector (14) and the second electrode (132) melts, the potential storage spring (16) drives the rotating body (15) to rotate, and the arc-isolating plate (154) rotates to the electrode via hole (1211) and between the electrode connector (14) and the second electrode (132). The surge protection module (1) and the surge protection device can effectively avoid the problem of solder adhesion and possibly arcing during tripping.

IPC Classes  ?

• H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage

Abstract

Disclosed in the present invention are a linkage mechanism, a base, and a surge protection device. The linkage mechanism comprises a linkage swing rod and transmission components, wherein the linkage swing rod is arranged to be rotatably connected, and is provided with a trigger portion capable of triggering a switch when rotating and at least two stress portions arranged spaced apart from each other on one side of an axis of rotation of the linkage swing rod; one transmission component is arranged corresponding to each of the stress portions; and the transmission components are arranged in such a way that any of the transmission components applies a pushing force to the stress portion to rotate the linkage swing rod, and thus the trigger portion triggers the switch. According to the surge protecting device using the linkage mechanism provided in the present invention, a module failure signal can be sent out when any surge protection module fails under the condition where only one microswitch is arranged, which not only simplifies the structure of the surge protecting device and reduces the volume, but also reduces the cost.

IPC Classes  ?

• H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage

Abstract

Disclosed are a digital-to-analog conversion apparatus and method. The digital-to-analog conversion apparatus comprises a control module, n conversion modules, an adder and a feedback module, wherein n is an integer greater than or equal to 2; n conversion coefficients of the n conversion modules increase gradually; the control module is configured to split an input digital signal into n intermediate digital parts, divide same by corresponding conversion coefficients to obtain n intermediate digital signals, and respectively transmit the n intermediate digital signals to the n conversion modules; the n intermediate digital parts increase gradually; the conversion module is configured to perform digital-to-analog conversion on the intermediate digital signals to obtain a result containing the conversion coefficients; the adder is configured to add output signals of the n conversion modules to obtain an analog signal; the feedback module is configured to obtain a feedback signal according to the analog signal; and the control module is further configured to adjust the distribution of the n intermediate digital parts according to a target digital signal and the feedback signal.

IPC Classes  ?

• H03M 1/66 - Digital/analogue converters

Abstract

111122322444) to a control signal receiving end (215).

IPC Classes  ?

• H02M 3/24 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
• G08C 19/00 - Electric signal transmission systems

Abstract

Disclosed are an intelligent safety relay and a circuit applied thereby. The intelligent safety relay includes: a first processing chip MCU A, a second processing chip MCU B, first and second input driving circuits, first to third input sampling circuits, first and second diagnostic signal generation circuits, first and second logic circuits, a diagnostic signal detection circuit, first and second relay driving circuits, and first and second relay circuits. The first processing chip MCU A and the second processing chip MCU B can automatically control, based on samples of the input driving circuits taken by the input sampling circuits, connection or disconnection of contacts in the first and second relay circuits so as to switch on or off an output.

IPC Classes  ?

• H02H 7/00 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
• H02H 7/20 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
• H03K 17/687 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being field-effect transistors
• H02H 1/00 - Details of emergency protective circuit arrangements
• H03K 19/20 - Logic circuits, i.e. having at least two inputs acting on one outputInverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
• H03K 17/60 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being bipolar transistors

Goods & Services

Programmable logic controllers; electronic circuits; current converters; power distribution blocks; relays; voltage surge suppressors; connectors [electricity]; voltage surge protectors; circuit boards with integrated circuit; voltage monitoring modules; electric control devices; electronic control unit for use in motor vehicles; downloadable computer programs; electric installations for the remote control of industrial operations.

Abstract

A base of a surge protector, the surge protector comprising a function rotating member (3), and the function rotating member (3) having a remote linkage rod contact wall (3D) and a remote linkage notching (3H), and the base comprising a remote device, and the remote device having at least one remote linkage rod (9), and when the function rotating member (3) is situated at the first position, the remote linkage rod (9) is pressed down by the remote linkage rod contact wall (3D), and when the function rotating member (3) is rotated from the first position to the second position, the function rotating member (3) is rotated from the remote linkage rod contact wall (3D) to the remote linkage notching (3H) with respect to the point of action of the remote linkage rod (9) to release the remote linkage rod (9).

IPC Classes  ?

• H01H 71/14 - Electrothermal mechanisms
• H01H 37/08 - IndicatorsDistinguishing marks
• H01H 37/02 - Thermally-actuated switches Details
• H01H 71/10 - Operating or release mechanisms
• H01H 71/04 - Means for indicating condition of the switching device
• H01H 71/02 - HousingsCasingsBasesMountings
• H01H 15/02 - Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch Details
• H01C 7/12 - Overvoltage protection resistorsArresters
• H01H 37/76 - Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
• H01H 71/00 - Details of the protective switches or relays covered by groups

Abstract

An intelligent safety relay and circuits applied thereby. The intelligent safety relay comprises: a first processing chip (MCU A), a second processing chip (MCU B), first and second input driving circuits, first to third input sampling circuits, first and second diagnostic signal generating circuits, first and second logic circuits, a diagnostic signal detection circuit, first and second relay driving circuits, and first and second relay circuits. The first processing chip (MCU A) and the second processing chip (MCU B) can control, on the basis of samples of the input driving circuits taken by the input sampling circuits, the connection or disconnection of contacts in the first and second relay circuits so as to allow an output to be connected or disconnected, and can detect, on the basis of the diagnostic signal generating circuit and the diagnostic signal detection circuit, various faults so as to connect or disconnect the output, thus implementing intelligent and reliable cutoff. Moreover, the employment of the intelligent solution, by means of configuration, implements various safety functions or logical requirements.

IPC Classes  ?

• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors

Abstract

A release mechanism for surge protectors includes a first electrical connection pin soldered with a varistor's second electrode, a function rotating member sheathed on a fixed column and installed between a varistor and a bridge bracket, an elastic driving device fixed into an internal box body, and a bridge bracket fixed to a second electrical connection pin in the internal box body (2). If the varistor is not released, then the bridge bracket will be passed through a soldering window and soldered with a varistor's first electrode, or else the elastic driving device will drive the function rotating member to rotate around the fixed column. An arc shield plate shields between the bridge bracket and electrode. A failure status indicating area is exposed and a remote linkage rod is triggered.

IPC Classes  ?

• H01H 71/14 - Electrothermal mechanisms
• H01H 71/02 - HousingsCasingsBasesMountings
• H01H 71/04 - Means for indicating condition of the switching device
• H01H 71/10 - Operating or release mechanisms
• H01H 15/02 - Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch Details
• H01C 7/12 - Overvoltage protection resistorsArresters
• H01H 37/08 - IndicatorsDistinguishing marks
• H01H 37/76 - Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
• H01H 71/00 - Details of the protective switches or relays covered by groups

Goods & Services

Surveying apparatus and instruments; measuring apparatus; gauges; meters; detectors.